STD 12 -8.1. Aldehydes and ketones — JEE STD 11 Science — Question

$X + \frac{1}{2}{O_2}\,\, \to \,\,XO + 90.8\,kJ$

It follows that the heat of reaction for the following process $M + XO$ $\rightleftharpoons$ $MO + X$ is given by......$kJ$

$I.\,\,CH_2=CHCH_2NH_2$

$II.\,\, CH_3CH_2CH_2NH_2$

$III. CH \equiv CC{H_2}N{H_2}$

$(I)\, Co(III)$ is stabilised in presence of weak field ligands, while $Co(II)$ is  stabilised in presence of strong field ligand. 

$(II)$ Four coordinated complexes of $Pd(II)$ and $Pt(II)$ are diamagnetic and  square planar.

$(III)\,[Ni (CN)_4]^{4-}$ ion and $[Ni (CO)_4]$ are diamagnetic tetrahedral and  square planar respectively. 

$(IV)\,Ni^{2+}$ ion does not form inner orbital octahedral complexes.